1. U.S. Department of Education. (2020). Fiscal Requirements of Part B of the Individuals with Disabilities Education Act. Section: "Maintenance of Effort (MOE)," pp. 12-13. This document explicitly states that a Local Education Agency (LEA) "may not reduce the level of expenditures for the education of children with disabilities made by the LEA from local funds below the level of those expenditures for the preceding fiscal year," directly refuting option B.
2. Education Commission of the States. (2016, August). Shared Services in Education. This policy brief details how shared service agreements are used by school districts to "reduce costs and increase efficiencies" (p. 1), specifically mentioning special education as a prime area for such collaboration. This directly supports option C as a viable, cost-effective solution.
3. Yell, M. L. (2019). The Law and Special Education (5th ed.). Pearson. Chapter 4, "A Free Appropriate Public Education," clarifies that FAPE requires special education and related services to be provided "at public expense, under public supervision and direction, and without charge" (p. 105), which makes option A illegal.
4. Odden, A. R., & Picus, L. O. (2014). School Finance: A Policy Perspective (5th ed.). McGraw-Hill. Chapter 10 discusses strategies for improving school productivity, including the regionalization of services for special-needs students as a method to achieve economies of scale and control rising costs, aligning with the logic of option C.